Inorganic Chemistry Practice Test

This practice test will test your knowledge of inorganic chemistry, its fundamentals, inorganic reactions and characterization of inorganic compounds. It is consist of 35 multiple-choice questions representing a fairly wide range of difficulty. Choose the best answer from the answer choices. To proceed to the next question, just click or tap the 'continue' button. Good luck!

Which of the following electron configurations represents the electron configuration for a magnesium cation...Mg2+?

If the temperature of a reaction is increased by 20°C the reaction rate will be...

20 times as fast.

Unchanged because the reaction rate is not dependent on the temperature.

4 times as fast.

2 times as fast.

How many milliliters of 2 M NaCl solution are required to make 1 liter of 0.4 M NaCl solution?

800 mL

0.2 mL

200 mL

5,000 mL

The identity of an element is determined by...

the number of its electrons.

the number of its neutrons.

the number of its protons.

its atomic mass

The atom formed by the beta decay of carbon-14 is...

boron-14

nitrogen-14

oxygen-18

beryllium-10

How many valence electrons does an oxygen atom have?

The half-life of francium-212 is 19 minutes. How many minutes will it take for 1 gram of this isotope to decay to 0.125 grams?

57 minutes

38 minutes

4.75 minutes

9.5 minutes

In a single replacement reaction, why will one metal replace another metal in an ionic compound?

The metal will replace another metal if it has a smaller mass and thus is able to hit the ionic compound with a higher velocity and thus more energy.

The metal will replace another metal if it can gain electrons more readily than the other metal.

The metal will replace another metal if it can lose electrons more readily than the other metal.

The metal will replace another metal if it has a larger mass and thus is able to hit the ionic compound with more energy.

When two ionic compounds are dissolved in water, a double replacement reaction can...

occur if the ions react to form a gas, which bubbles out of the solution.

never occur since all ions in water are "spectator ions".

occur if two of the ions form an insoluble ionic compound, which precipitates out of solution.

occur only if the ions form covalent bonds with each other.

If additional calcium phosphate is added to the above reaction mixture, what will happen to the overall reaction?

The reaction will occur at a faster rate.

There will be no change in the overall reaction.

More of the reactants will have to react in order to compensate for the increase in the amount of one of the products of the reaction.

Less of the reactants will react in order to compensate for the increase in the amount of one of the products of the reaction.

What would be the volume in liters of 640g of oil if the density of the oil is 0.8 g/mL?

512 liters

800 liters

0.5 liters

0.8 liter

If the absolute temperature of a gas is doubled and the pressure of the gas is halved, how will the volume change?

It will stay the same as its original value.

It will increase by two times its original value.

It will decrease to one fourth of its original value.

It will increase by four times its original value.

Which of the following represents the correct formula for aluminum oxide?

Al2O3

AlO

Al2O

AlO2

Which of the following correctly represents the balanced chemical reaction between aluminum and sulfur?

How many grams of NaOH are needed to make 100 milliliters of a 0.2 molar solution of NaOH?

800 grams

0.8 grams

20 grams

0.02 grams

The following reaction coordinate diagram represents...

A reaction in which a catalyst is used.

An exothermic reaction.

An endothermic reaction.

A reaction that is neither endothermic nor exothermic.

When the following reaction equation is properly balanced, the number of moles of O2 will be...

1.5 moles

38 moles

13 moles

19 moles

Which of the following is the correct electron-dot formula for carbon dioxide?

The pressure of a gas will____when the volume is decreased and will_____when the absolute temperature is decreased.

decrease...increase

increase...decrease

increase...increase

decrease...decrease

If the concentration of a reactant is tripled, the reaction rate will...

be at least 3 times as fast.

remain the same because the reaction rate does not depend on the concentration of the reactants.

be 30 times as fast.

be 4 times as fast.

Which of the following is the correct name for NaHCO3?

nitrogen hydrogen carbonate

sodium acetate

sodium hydrogen carbonate

sodium hydrogen carbon trioxide

Which of the bonds, shown by the dash, has the greatest polarity?

H-NH2

H-SH

H-OH

H-Cl

If both the volume and the pressure of a gas are doubled, how will the temperature change?

It will stay the same as its original value.

It will increase by four times its original value.

It will increase by two times its original value.

It will decrease to one fourth of its original value.

How many moles of CO2 are present in 220mg?

10 moles

5000 moles

5 moles

0.005 mole

Fluorine atoms tend to_____when they form chemical compounds with metals.

Fluorine atoms do not form compounds with other atoms...fluorine is an inert gas.

lose electrons

neither lose nor gain electrons...they usually share electrons equally with metals.

gain electrons

Which of the following orbital box diagrams represents silicon, which has 14 electrons?

Which of the following is the correct electron-dot formula for water?

The probability area that best represents the shape of an atomic 3p orbital is...

Which of the following compounds should have the highest boiling point?

H2O

NH3

CH4

What is the formal charge of the oxygen atom of the following compound?

0.00002 milligram

20 milligrams

0.002 milligram

2000 milligrams

When the following reaction equation is properly balanced, the number of moles of O2 will be...

5 moles

1.5 moles

3.5 moles

3 moles

What happens when a fluorine atom becomes a fluoride ion in a chemical reaction?

An electron is lost from one of the outer orbitals.

A proton is gained by the nucleus.

An electron is lost from one of the outer orbitals.

A proton is lost by the nucleus.

What is the formal charge of the oxygen atom of the following compound?

-3

-2

What is the major attraction between water molecules in the solid physical state?

electrostatic interactions between charged atoms

dipole-dipole interactions

hydrogen-bonds

physical entanglement of the molecules

How many calories are needed to raise the temperature of 10 grams of water from -5°C to 15°C? Assume that the water is cooled below the freezing point but has not frozen.

0.5 calories

200 calories

100 calories

2 calories